Home
Class 12
CHEMISTRY
Gas mask is prepared on the basis of ads...

Gas mask is prepared on the basis of adsorption because

A

it causes absorption of poisonous gases on activated charcoal

B

it causes absorption of gaseous particle

C

it increases oxygen molecule around the atmosphere by decreasing concentration of poisonous gases

D

Both (a) and (c)

Text Solution

Verified by Experts

The correct Answer is:
D
Poisonous gases get adsorbed by activated charcoal hence , concentration of poisonous gases around atmosphere decreases and concentration of oxygen increases .
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2|22 Videos

  • STATES OF MATTER

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2 (Miscellaneous Problems)|30 Videos

Similar Questions

Explore conceptually related problems

Floral characters are the basis of classification because

If the pressure of a gas is increased, its extent of adsorption will

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Gas mask works on the principle of

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Gas mask contaons

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SURFACE CHEMISTRY-EXERCISE 2
  1. During adsorption , which of the following has negative value ?

    Text Solution

    |

  2. The role of the activation charcoal in gas mask used coal mine is

    Text Solution

    |

  3. Gas mask is prepared on the basis of adsorption because

    Text Solution

    |

  4. Adsorption of gaseous moleculesof hydrogen on Pd is known as

    Text Solution

    |

  5. Point out the correct statement .

    Text Solution

    |

  6. Plot of log x/m against log p is a straight line inclined at an angle ...

    Text Solution

    |

  7. Choose the incorrect statement .

    Text Solution

    |

  8. Powdered substances are more effective adsorbents than their crystalli...

    Text Solution

    |

  9. The linear plot for Freundich adsorption isotherm is

    Text Solution

    |

  10. In general, H(2) gas is adsorbad on activated charcoal to a less exten...

    Text Solution

    |

  11. For a positively charged sol , the flocculating power of KCl , MgCl(2)...

    Text Solution

    |

  12. LANGMUIR ISOTHERM

    Text Solution

    |

  13. Which of the following is the correct approximate value of ratio of si...

    Text Solution

    |

  14. How will you test whether a given solution is a colloidal solutio...

    Text Solution

    |

  15. Which of the following is incorrect about adsorption ?

    Text Solution

    |

  16. In physisorption , adsorbent does not show specificity for any particu...

    Text Solution

    |

  17. Adsorption is always exothermic in nature , Do you agree ?

    Text Solution

    |

  18. A colloidal solution is subjected to an electrical field. The particle...

    Text Solution

    |

  19. Identify the gas which is readily adsorbed by activated charcoal .

    Text Solution

    |

  20. In physisorption , the molecules of adsorbate held to the adsorbent by

    Text Solution

    |